Insulating window



Zmventor 2 Sheets-Sheet 1 L. F. JULIEN INSULATING WINDOW Filed D60. 28, 1956 I l I i l I 1 l .J

Sept. 2l, 1937.

SePt- 2l, 1937. l... F. JULIEN 2,093,727

INSULATING WINDOW Filed Dec. 28, 1936 2`Shee1zs-Sheel'. 2

Patented Sept. 21, 1937 UNITED STATES PATENT GFFICE IN SULATING WINDOW Application December 28, 1936, Serial No. 117,690

8 Claims.

This invention relates to a frame construction for windows, and more particularly to a sash frame for supplemental or insulating windows; and an object of the present invention is to increase the insulating qualities of such supplemental windows by reducing to the minimum the bulk of metal employed and by forming the frame from sheet metal with a channel to receive an insulating strip or member and hold said vstrip in l0 position to seat upon the regular window frame and make a tight joint therewith.

It is also an object to provide a sash frame which is light in weight yet very strong and rigid due to its sheet metal construction and channel form, and which therefore, may be made of minimum width so that it will add but little to the obstruction of light admitted by the window.

A further object is to reduce the cost of manufacture and assembly by providing such a sash frame with a sheet metal locking strip which in the sash assembly, is interlocked with the channel member of the frame and serves to hold the glass within the frame and the insulation within the channel of the frame without the use of putty, cement or other securing means.

It is also an object of the present invention to provide certain other new and useful features in the construction, arrangement and combination of parts, all as hereinafter more fully described,

reference being had to the accompanying drawings, wherein Figure 1 is a front elevation of' a window with a supplemental sash illustrative of an embodiment of the present invention applied thereto;

Fig. 2 is an enlarged transverse section substantially upon the line 2--2 of Fig. 1;

Fig. 3 is an enlarged perspective view of the insulating member or strip, the, same being shown in cross section and detached;

Fig. 4 is a perspective detail of a sheet metal channel frame shown in cross section;

Fig. 5 is a, perspective detail of a locking strip formed of sheet metal and shown in cross section, and

Fig. 6 is an enlarged sectional detail of the window frame and adjacent part of the supplemental sash frame illustrative of the application of an added part applied to the regular Window frame and made necessary by the particular construction and seating of that frame wherein the cement work of the wall in which the regular frame is set and which does not permit of the attachment to that frame of the supplemental frame hardware for supporting the supplemental frame thereon.

For the purpose of illustration, an ordinary metal window frame is shown having metal rails or side members i of I-beam form adapted to be set in the concrete wall of the building or otherwise secured in place for holding a glass panel or 5 pane 2a which is set within the angle of the members I and held in place in the usual manner by putty. This is merely illustrative of a form of window frame to which it is desirable to apply a supplemental or storm window for insulating 10 purposes. It is understood that the insulating window may be applied to metal window frames as shown or may be applied to other window constructions or to the common metal window and sash frame where the sash is movable for ventilating purposes and the part of the insulating window which is applied to the Ventilating or swingable sash portion of the ordinary window, will be made in the proper size for attachment to the Ventilating panel of this window to swing there- 20 with or independently thereof. The present illustration shows the supplemental or storm window as pivotally attached to the ordinary window but it will be understood that this supplemental window may be pivotally attached to the swinging 25 panel of the sash of the ordinary window or to any other of the metal members of the ordinary window to seat thereon and form a vtight joint therewith along the edges lof the supplemental sash frame. 30

In the construction shown, where the ordinary window is formed with the frame members i, the outer surfaces of the flanges 2 are exposed with the surface in the plane of the outer surface of the house wall, the supplemental frame may be 35 provided with hinge members 3 to connect one side of the supplemental frame with the window frame and support the supplemental frame to swing toward the window frame and seat the' insulating strips or members which are indicated 40 as a whole by the numeral 4 against the outer surfaces of the flanges 2 of the members I of the fixed or lordinary frame.

The supplemental window comprises a rectangular frame which is indicated as a whole by the 45 numeral 5, this frame 5 being formed from sheet metal with a channel 6 which is substantially U-shaped in cross section and is adapted to receive and protect the insulating strip 4. The outer flange l of this channel 6 is turned in- 50 wardly at an angle into the open end of said channel to provide a locking flange 8 adapted to engage within a notch 9 in one side of the strip 4. The opposite or inner flange l0 of the channel 6 has its inner edge turned inwardly as at Il to 55 lie flat against the flange I with its inner end or edge, forming a shoulder I2 within the channel. The bottom wall I3 of the channel is extended a considerable distance laterally and then folded back vupon itself and extended to form the flange I0. This inwardly projecting flange or wall thus forms a seat for the glass panel or pane I of the supplemental window. The edge portion of the glass I5 is seated upon an insulating strip IB of rubber or other suitable material upon said flange I4 and at the opposite or inner side of the glass is a second insulating strip IT.

To hold the glass panel I5 firmly seated upon the inwardly extending flange I4, a locking strip indicated as a Whole by the numeral I8 is formed up of sheet metal with an edge portion I9 to extend into the open inner side of the channel and with a locking flange integral with its edge portion with this flange/spaced slightly from the wall I9 and arranged to spring into locking engagement with the shoulder I2 on the channel member when this locking strip I8 is forced into the channel against the side of the insulating strip 4 within the channel and securely lock the insulating strip within the channel with that portion of the insulating strip which projects from the channel formed hollow as at 2I, so that as the supplemental frame is swung toward the regular window frame, the compressible or hollow inner edge portions of the insulating member or strip 4 will seat upon the window frame and be compressed thereagainst to form a tight joint therewith. 'I'he inwardly extending edge portion 22 of the locking strip I8 is adapted to seat upon the insulating strip I1 and by forcing this locking strip over the flange I0 of the channel frame against the resistance of the insulating member 4 and forcing the edge portion 22 of the locking strip into firm engagement with the strip I'I, the glass panel I5 will be firmly held in place upon its seating flange. of the channel frame and the insulating member 4 will also be firmly locked within the channel of the supplemental frame. Therefore the usual means for holding the edges of the glass panel is not required and the insulating member 4 is firmly held within the channel in proper position to function in sealing the joint between the supplemental frame and the regular window frame, by this locking strip which is forced into the channel against one side of the insulation and is locked in place by the engagement of its flange 20 with the shoulder I2 within the channel without the necessity for employment of cement or other means for securing the insulation within the channel.

The side of the channel sash frame opposite that at which the hinge members 3 are secured, is provided with a socket member 23 to receive a locking screw 24 adapted to engage a screwthreaded opening in the flange 2 of the regular window frame and thus force the supplemental sash frame toward the regular window frame and firmly seat the inner hollow portions 2I of the insulating member 4 against the outer surface of said flange 2. One or more of these locking bolts 24 may be employed and these locks may be of the bolt type shown or may be of any other suitable construction adapted to secure the supplemental sash frame to the regular window frame and force it into engagement therewith.

Where the I-beam member or members of the regular window frame are set within the concrete of the wall of the building as shown in Fig. 6, the exposed surface of the flange 2 of the regular frame, may be covered by the concrete to such an extent that the insulating member of the supplemental sash cannot seat upon the surface of the flange 2 but will come opposite the putty or other filling which holds the glass 2a, and therefore to form a seat for the insulation 4, an angle bar or strip 25 is secured by screws 26 to the frame I over the angular outer surface of the putty filling with the outer surface of its flange 21 flush with the outer surface of the flange 2 of the frame I and thus provide a scating surface for the insulating member 4, this angle strip 25 extending around the entire window opening or glass 2a so that the insulation 4 will seat along the entire edge of the frame I and effectually close the opening between the edges of the regular window frame and the edges of the supplemental sash. The supplemental sash is therefore spaced from the regular sash and a dead air space is provided between the glass panels 2a and I5 to provide an effectual insulation for the regular window. 'I'he metal frame of the regular window is therefore substantially covered by the supplemental sash frame and as this sash frame is formed of sheet metal it provides a minimum bulk of metal and therefore is a conductor of but'little cold or heat and carries the insulating strips to further prevent the cold or heat from passing through to the regular metal window frame.

Obviously the supplemental sash frame may be hinge supported as shown, or otherwise provided with any suitable means for supporting it in place upon the regular window frame but is preferably hinged to swing toward and from the regular window so that it may be opened up to facilitate cleaning of the inner surfaces of the glass panels. Other changes in the particular construction and arrangement of parts may also be provided to suit the particular conditions of insulation and I do` not therefore limit myself to the particular construction shown.

Having thusfully described my invention what I claim is:

1. A supplemental frame for windows, said.

frame being formed of sheet metal with a deep channel open at one side laterally of said frame and having a wall formed with a yieldable inwardly projecting portion, an insulating member to fit within said channel and formed to receive said yieldable portion and hold said member in said channel. said member having a yieldable part projecting from the open side of said channel to engage the surface of a window frame toward which said supplemental frame is forced, and means for forcing said supplemental frame laterally to bring said insulating member into intimate contact with said window frame.

2. A supplemental sash for windows comprising a sash frame formed with an inwardly extending flange and with a deep channel extending throughout the length of said frame with one side of said channel open laterally of said frame, an insulating member within said channel extending throughout the length thereof and having a portion projecting from the open side of said channel, a glass panel supported adjacent its edges upon said inwardly extending flange of said sash frame, and a locking strip extending into said channel to lock said insulating member therein and projecting inwardly of said sash frame in opposed relation to said inwardly extending flange to clamp said glass between said ange and strip adjacent the edges of said glass.

3. A supplemental sash for windows including a sash frame formed of sheet metal and providing a deep channel alongl the periphery of said sash, said channel being formed by opposed walls having inturned edge portions, an insulating member extending throughout the length of said channel with a portion projecting from the open side of said channel and formed at one side to engage the inturned edge portion of one wall of the channel to lock said member within said channel, a strip member engaged over the free edge of the other wall of the channel and interlocked with the inwardly turned edge portion of said wall, and means on said sash frame extending inwardly thereof for forming a seat for a glass panel, said strip extending inwardly of the frame in opposed relation to said means for holding said glass panel seated adjacent its edges upon said seating means.

4. A supplemental sash frame for windows having metal frames set within the wall of a building, said supplemental sash including a sash frame adapted to be attached to the metal frame of the window mounted in the wall, said supplemental sash comprising a frame of rectangular form in cross section providing a channel along the periphery of said sash frame and having an open side open toward the window frame to which the sash frame is attached, said channel being of a depth substantially equal to the width of said sash frame, an insulating member mounted within said channel and extending throughout the length thereof, with a yieldable portion projecting from the open side of said channel to engage an outer surface of the metal window frame mounted in the building wall and to be compressed into intimate contact with said surface by the forcing of said supplemental sash toward said metal frame, and a locking strip for locking said insulating member within said channel, said strip being interlocked with the inner wall of said channel.

5. A supplemental sash for application to a window having a frame set within the wall of a building, said supplemental sash including a sash frame formed from sheet metal and providing a; channel adjacent the periphery of said sash and open at one side toward a surface of the metal window frame within the building wall, said channel comprising opposed sheet metal walls and a bottom wall extended inwardly of the sash to provide a seating flange, an insulating member secured within said channel and interlocked with said opposed walls thereof and having a hollow portion projecting from the open side of the channel to be compressed against the surface of the window frame in the building wall, a glass panel within said sash frame seated adjacent its edges upon said seating flange of said sash frame, and a sheet metal locking member having a portion extending into said channel andover the free edge of the inner wall thereof and provided with an outer portion to hold the edge of said glass panel seated upon said seating ange.

6. A supplemental sash for windows having a metal frame set within the wall of a building and provided with a glass panel held in place within the metal frame by putty filling an angle of the frame, said supplemental sash including a. sash frame having a deep channel, an insulating memberlsecured within said channel with a portion projecting from the open side of the channel toward the window frame, a glass panel mounted within said channel frame in spaced relation to the glass panel of the window frame, and a seating strip for attachment to the window frame in opposed relation to the outer angular surface of the putty filling., to form a seat for the projecting portion of the insulating member within the channel of the sash frame, and means for attaching said supplemental sash to said frame of the window for holding the sash in position with said insulating member in opposed relation to said seat member applied to the window sash and for forcing said supplemental sash toward the window frame.

'7. A supplemental sash for application to a window sash having a metal frame mounted within the wall of a building and provided with a glass panel set within moldable material filling an angle of the frame with an inclined outer surface projecting outwardly from the panel toward the outer portion of the frame, said supplemental sash including a sheet metal sash frame formed with a channel of a depth substantially equal to the width of said frame and providing opposed walls and a seating flange extending inwardly of said sash frame at the outer side thereof, an insulating member secured within said channel and extending throughout the length thereof with a portion of said member projecting from the open side of the channel toward the window of the building, an angle seating member secured to the frame of the window over the inclined surface of the filling holding the glass panel of the window and providing an outer seating surface in the plane of the outer surface of the window frame for the seating thereon of the projecting portion of the insulating member within the channel of the supplemental sash frame, means for hingedly connecting said supplemental sash to said window frame, and means for swinging said sash to- .ward said window to seat said insulating member upon said seating angle member secured to the window frame.

8. A supplemental sash for windows including a sash frame formed of sheet metal and of rectangular form in cross section with opposed Walls forming a channel of a depth substantially equal to the width of said channel frame in cross section and extending throughout the periphery of said frame with an open side opening lateral- 1y of the frame, the free edges of said walls forming said channel being turned inwardly of the channel, the bottom wall of said channel being extended inwardly of the frame to form a support for a glass panel within said frame, an insulating member within said channel provided with a side notch to be engaged by the inturned edge portion of one wall of the channel, an insulating strip upon said inwardly extending flange and upon which the edge portion of said u glass panel is seated, an insulating strip at the other side of said panel, and a locking member formed of sheet metal extending over the free edge of the inner wall of the channel and into said channel between said wall and insulating member and formed to interlock with the edge of the inturned edge portion of said wall, said locking member being formed with a flange portion extending inwardly of the frame to engage said insulating strip upon said glass panel at the inner side thereof and clamp said panel and insulating strips between said ange and said seating flange on said sash frame.

LOUIS F. JULIEN. 

